Boiler



Dec. 17, 1935.` W BRABBE zzsml BOILER I Original Filed Feb. 2, 1931 5 Sheets-Sheet 1 www @In slwi n' y E INVENToR.

ATTORNEY Dec. 17, 1935.

c. W. l BRABBE BOILER Original Filed Feb. 2, 1931 3 Sheets-Sheet 2 INVENToR. ma'

BOILER original Filed Feb. 2, 1951 3 Sheets-Sheet 5 `INI/EN TOR.

ATQRNEY Patented Dec. 17, 1935 Charles W. Brabbee, Bronxville, N. Y., assigner to Amerlcan Radiator Company, New York, N. Y., a corporation of New Jersey Original application February 2, i931, Serial No. 512,924. Divided and this application July 21,

1933, Serial No. 681,423

11 Claims.

My invention relates to improvements in heating apparatus, and the same has for its object to provide a boiler for heating purposes which is simple in construction, eiiicient in operation, and convenient to manufacture.

Further, said invention has for its object to provide a sectional boiler of the magazine type which will burnanthracite or bituminous coal, or coke, or mixtures thereof, ,as desired.

Further, said invention has for its object to provide a boiler in which means are provided whereby the combustion chamber may be connected directly with the chimney or stack to facilitate the starting of the boiler.

Further, said invention has for its object to provide a sectional, magazine boiler in which bypass means are provided for short-circuiting the draft at the commencement of the firing operation.

Further, said invention has for its object to provide a boiler comprising a plurality of transverse sections each of which embodies a proportionate part of the ashpit, fuel receptacle and combustion chamber, magazine, flue parts and air ducts.

Further, said invention has for its object to provide a sectional boiler having a series of flues leading from the fuel receptacle and combustion chamber, and a plurality of collecting lues connecting the said flues with the smoke outlet, and. means whereby either one of said collecting flues may be simultaneously placed in communication with the smoke outlet and the other closed to said smoke outlets.

Further, said invention has for its object to provide a boiler having a large fuel capacity, and a comparatively small burning area whereby to insure a long operating period without necessity for refueling.

Further, said invention has for its object to provide a sectional, magazine boiler in which the fuel magazine, combustion chamber, fuel receptacle and ashpit are arranged substantially to one side of a center line of the boiler, and iiue portions to the other side of said line.

Other objects will in part be obvious and in part be pointed out hereinafter.

To the attainment of the aforesaid objects and ends my invention consists in the novel fea` tures of construction, and in the combination, connection, and arrangement of parts hereinafter more fully described and then pointed out in the claims.

In the accompanying drawings wherein like numerals of reference indicate like parts- (Cl. 11o-100) Figure l is a front elevation showing one form of boiler constructed according to and embodying my said invention;

Fig. 2 is a back View;

Fig. 3 is a face view of an intermediate section; 5

Fig. i is an enlarged detail elevation partly in section showing the construction and arrangement of the main and the shortcircuiting dampers, and the actuating means therefor, both dampers being shown in closed positions; 10

Fig. 5 is a top view of the parts shown in elevation at Fig. 6;

Fig. 6 is a view similar to Fig. 5 showing the main damper open, and the short-circuiting damper closed;

Fig. 7 is a top view of the parts shown in elevation at Fig. 8;

Fig. 8 is a View similar to Figs. i and 6, showing both main and short-circuiting dampers in open position, and

Fig. 9 is a top View, partly in section of the parts shown in elevation at Fig. 8.

In said drawings i5 designates the boiler as a whole comprising a front section, a b-ack section, and a plurality of corresponding intermediate 25 sections it. The front is provided at about its central portion with an observation opening I9; below and to the left of said observation opening with two slicing openings 2e, and below said slicing openings with an ash pit opening 2 I. In 30 the upper left hand corner is provided fuel opening 22 communicating with the fuel magazine 23. Adjacent to the upper right hand side of the front section is provided a clean-cut opening 24 .and directly below said clean-cut opening 24 is 35 provided a larger clean-cut opening 25, aiiording .access to the flues.

The back section is provided adjacent to its upper left hand corner (as seen from the rear) with a smoke outlet 25, and near the middle ad- 40 jacent to the base with a cold air inlet 21 communicating with the ash pit.

The boiler proper, comprising the assembled sections I8, is wholly enclosed in a sectional metal jacket 28 provided upon its inner side with in- 45 sulating lining members 29.

ceptacle and combustion chamber portion 34. The fuel receptacle 34 extends from one side of the boiler towards the opposite side thereof, and terminates at a point beyond the vertical center of the boiler. The fuel receptacle is provided with a grate 35 consisting of a plurality of bars 35a each one of which is pivotally mounted at its opposite ends within one of the intermediate sections I8 of the boiler.

Each grate bar 35a has a depending arm 36 adjacent to one of its ends, the alternate of which are connected to two bars 3l, 3le Whose forward ends extend through the front section of the boiler and are pivotally connected toshaking levers 39, 39a, respectively, which have their lower ends pivotally connected to the body of the boiler and their upper ends free and adapted to detachably receive the end of a separate shaking arm, not shown. The space below the `grate 35 constitutes the ash receptacle 40.

The portion of each intermediate section |8 between the right hand side thereof and ,the vlefthand side of the fuel receptacle,V combustion chamber, and ash pit iormsf'adjacent to the top of the boiler, a steam dome member. 4|, Yand a. revertible flue which, atits entrance portion 42 oyerhangs the .ifuel receptacle andcombustion Chamber. The right-hand Awall 43 of the fuel receptacle and combustion chainberis formed by a tubular water-way 44 which extends fro m the base portion lof vthe section, upwardlyvand thence angularlyinwardly towards the lower end of a short tubular member 45 constituting the -lower end ofthe inner wall ofthe fuel magazine 23to which-it isunited by a smaller tubular portion. 46

,u whereby to forni between it and the corresponding tubular'members 45 of the secti ons adjacentat each side a series of openings 42 for the hot gases and products ,of combristicii.. The. uespace is further. dividedinto a descending ,portion48 and ..3 an ascending portion i8a by a dependingtubular partionrortion 4.9` which extends rearwardly and downwardly towards the, lower transverse waterway 48,lo constituting lthebase of, the ash r' receptacle, and at its lower end ,said depending tubular partition portion 49` is connected by short tubular members 50 with the tubular water way Hand with the vertical right-hand peripheral water way. 3E! of the 'section,.and similar short tubular members 5| serve to connectY thesame parts with the tubular partition member `49 about midway of its height.

The descendingfiuev part 48 communicates at its'upper vend'with a longitudinal short-circuiting flue 52which communicates at one end' with the i smoke outlet 2S, and the ascending flue part 48a communicates withjasimilar collecting'flue 52EL which communicates at its corresponding end with the 'smoke' outlet 26;

Vl'53 denotes a smoke hood which is bolted to the Y rear of the boiler over the smoke outlet 26 there- Vcircuiting nuefsz.

in. Within said smoke `hood 53'` are pivotally mounted a large horizontally-swingin gl damper 54a' which ysubstantially correvspondsgin"outline with the longitudinal collecting f iue' 52a, and a smaller horizontally-swinging damper 54 which fits over the rear end ofthe vlongitudinalshort- 'lhfe lower end of the damper 54ans providedfwitli an ear 55 t"receive the uppery end of a pivot pin 56 secured in the bottom ofthe smoke-hood 53 and the upperend of said damper'is provided with a similar ear 5 6a in whrichfis V`fixed the lower end'of a shaft 51, whose upper end extends through an opening in the top of fthe' smoke-hood 5 3, and has fixed upon'its projecting end an operating arm 58 having an upwardly projecting pin 59 at its free end adapted for engagement with a recess 60 in a reciprocable bar 6| which has its opposite ends slidably mounted in bearings 62, 62 secured to the top of 5 the smoke-hood.

The smaller damper 54 has integrally formed shaft members 63 and 6 4 at its upper and lower ends which extend respectively through suitable openings in the top and bottom of thesmokehood 53. The upper or longer shaft member 63 is, also provided at its upper projecting end with a fixed arm 65 having an upwardly projecting pin 66 at its free end adapted for engagement with a second recess 61 inthe bar 6|.

The bar 6| is pro-vided adjacent the entrance end .of each recess 68, 6'! with projections 68--68a which severally serve as cams to cause each of thepins 59, 66 on the arms 58, 65 to be guided into its respective recess in the bar 6|, when the 20 latter is reciprocated.

jThe bar. 6^| is farther provided between the recesses 60., lil-with a slotted portion 689 to loosely receive@111.111,10I fixed fet-,the ,lower free end; of an arm 'il whoseother end issecured `to the rearend 25 of 'a shaft 12 extending through the boilerI from ,i themfrontto the back thereof,A At the front of the boiler the .forward end of the. shaft`|2 is provided with an operating handle '|3 ,withwhich associated an indicating plate '|4y securedupon 30 the front of the boiler, to indicate the, several a1; POSitiOnS ofthe dampersw, t

, y The operationin generalof.;the boiler will be largelyobvious from the foregoing description. It is to be noted, however, thatwhenfrst firing 35 the cold boiler itis desirable that the fuelv be ignited rapidly, and that the, pro duced smoke l and products. ofcombustion .shall iindztheirzway most easily, and rapidly, `to the ,smoke z outlet and stack.

To obtain this result the damper control handle 40 I3-at thefront `ofthe boiler.shouldbeinoved.to if. the ,extreme`A left, thereby partially rotating/the shaft 12, andthe arm ||,l secured to said shaft-.at the ,rear of `the boiler to the right, as shown at Eigs., Land 9, and at the same time shifting the 45 bar 6| correspondingly in the same direction.. -lIn nl the course ofnsaid.movement thefbarll. will cause theprojection 59 on the .arm.58, operating the damper1 54e, to pass outvof .the recess 6|! `in said loa-116|, and come. into engagementwiththe 50 inner edge of said. bar, and thereby rotate.A the c: arm 58 aboutiorty-ye degrees (45), and infso doing cause the damper 54a` to wholly open the outlet of the collecting flue 52a leadingmto. the outlet 26, as seen at Fig. 8. As thebarl moves 55 to the right', as. justr above described, the-pro e.' jection 68 on said bar will contactlwith the pin 66 of the arm 65 fixed to the shaft 63:.operating the short-circuiting. damper 54and guide -said pin 66 into the recess 61 of said bar,.andthereby 60 partially rotate said shaft63-and wholly open the wf short-circuiting damper54 controlling the shortcircuiting flue 52, .thus permittingthe-smoke and products of combustion to pass simultaneously from the short-circuiting flue .52 v directly Vinto 65 the smoke-hood26, 0and mingle withthegases and products of combustion entering the Vsmokehood from the flue 52a, yand thence pass therewith into ythe stack. When thel fuel isfully ignited and burning properly, the handle ,13 is moved to the extreme right, and the s haftr12 correspondinglyrotated thereby causing the bar 6|d to be moved to the left, as shown at Figs. 4 and 5, and the associated parts to function to close both the '1n-ain damper 54a and the short- 75 circuiting damper 5. By this movementl of the bar 6l to the left the pin E5 of the arm 65, controlling the short-circuiting damper 54, will be caused to pass out of its recess 61 in the bar 6|, and ride upon the inner surface of said bar, and at the same time the projection 58a of the bar 6|, will contact with the pin 59 of the arm 53 controlling the main damper 54a, and cause said pin 59 to enter its recess 6E! in the bar 6l, and cause said arm S to be carried to the left, thereby closing said main damper 54e, and the shortcircuiting damper 5A, as shown at Figs. 4 and 5, and hold both of said dampers in their closed positions until the bar 6l and its operating parts are again actuated.

When the main damper 513e and the shortcircuiting damper 54 are adjusted to their closed positions, as shown at Figs. 4 and 5, suicient space will be left between the outlet end of the collecting flue 52a, and the edges of the damper 51Sa to allow for the escape of gases and products of combustion liberated by the fuel in the course of the normal operation of the boiler.

When it is necessary or desirable to open only the main damper 5f!a without opening the short circuiting damper 54, as, for example, when refueling the boiler, it merely requires the adjusting of the handle 13 to the vertical or intermediate position whereupon the damper 54a and the actuating parts therefor will assume the positions shown at Figs. 6 and 7, and permit of substantially all of the gases and products of combustion to pass through the collecting flue 52a, smoke-hood 53, and into the stack.

This application is a division of my earlier application Serial No. 512,924, led February 2, 1931, which resulted in Letters Patent No. 1,924,077, dated August 22, 1933.

Having thus described my said invention, what I claim and desire to secure by Letters Patent is:

1. A boiler including a fuel receptacle and combustion chamber, a smoke outlet, a collecting flue and a short-circuiting flue connecting said combustion chamber with said smoke outlet, a valve for said collecting flue, and a Valve for said shortcircuiting flue, a reciprocable bar, means for supporting said bar, cam means on sai-d bar, means carried severally by said dampers coacting with the cam means on said bar, and means for reciprocating said bar whereby to actuate said valves jointly to control the passage of gases and products of combustion through said flues.

2. A boiler including a fuel receptacle and combustion chamber, a smoke outlet, a collecting flue and a short-circuiting flue connecting said combustion chamber with said smoke outlet, a valve controlling the outlet of said collecting ue, and a valve controlling the outlet of said short-circuiting flue, a reciprocable bar, means for supporting said bar, cam means on said bar, means carried severally by said dampers for engagement with the cam means on said bar, 'and means for reciprocating said bar whereby to actuate said valves jointly to control said flue outlets and the passage of gases and products of combustion through said flues.

3. A boiler including a fuel receptacle and combustion chamber, a smoke-hood, a collecting flue and a short-circuiting flue having separate, adjacent outlets opening into said smoke-hood, said flues connecting said combustion chamber with said smoke-hood; a valve for said collecting flue, and a valve for said short-circuiting flue, a reciprocable bar, means for supporting said bar, cam means on said bar, means carried severally by said dampers for engagement with the cam means on said bar, and means for reciprocating said bar whereby to actuate said valves jointly to control the passage of gases and products of combustion through said flues. 5

4. A boiler including a fuel receptacle and combustion chamber, a smoke-hood, a collecting flue and a short-circuiting flue having separate outlets opening into said smoke-hood, said flues connecting said combustion chamber with said 10 smoke-hood, a Valve mounted in said smoke-hood controlling the outlet of said collecting flue, and a valve also mounted in said smoke-hood controlling the outlet of said short-circuiting flue, a re- A ciprocable bar, means for supporting said bar l5 upon said smoke-hood, cam means on said bar, means carried severally by said dampers for engagement with the cam means on said bar, and means operable from the front of the boiler-for reciprocating said bar whereby to actuate said valves to control the passage of gases and products of combustion through said flues.

5. A boiler including a fuel receptacle and cornbustion chamber, a smoke-hoed, a collecting ue y and a short-circuiting flue having separate outlets opening into said smoke-hood, said flues connecting said combustion chamber with said smoke-hood, a Valve mounted in said smoke-hood controlling the outlet of said collecting iiue, and i a valve also mounted in said smoke-hood controlling the outlet of said short-circuiting flue, a reciprocable bar, means for supporting said bar, cam means on said bar, shafts extending severally from said valves through said smoke-hood for engagement with the cam means on said bar, and an operating shaft engaging said bar for reciprocating the same whereby to actuate said valves to control the passage of gases and products of combustion through said iues.

6. A boiler including a fuel receptacle and combustion chamber, a smoke-hood, a collecting ue and a short-circuiting flue having separate outlets opening into said smoke-hood, said flues connecting said combustion chamber with said smoke-hood, a valve mounted in said smoke-hood contro-lling the outlet of said collecting flue, and a valve also mounted in said smoke-hood controlling the outlet of said short-circuiting flue, a reciprocable bar, means for supporting said bar, cam means on said bar, shafts extending severally from said valves through said smoke-hood, arms on the ends of said shafts for engagement with the cam means on said bar, a shaft extending through the boiler and operable from the front thereof, and an arm on the rear end of said 65 shaft engaging said bar for reciprocating the same whereby to actuate said Valves to control the passage of gases and products of combustion through said ues.

7. A boiler including a fuel receptacle and com- 60 bustion chamber, a smoke-hood, a collecting flue and a short-circuiting flue having separate outlets opening into said smoke-hood, said flues connecting said combustion chamber with said smoke-hood, a damper mounted in said smokehood controlling the outlet of said collecting flue, and a damper also mounted in said smoke-hood controlling the outlet of said short-circuiting flue,

a reciprocable bar, means for slidingly supporting said bar, cam means and recesses on said bar, shafts extending severally from said dampers through said smoke-hood arms secured to the projecting ends of said shafts for engagement with the cam means and certain of the recesses on said bar, and an operating shaft extending said arms to actuate said Valves, a shaft 'extendtacleA and combustion chambeig'a smoke outlet,

'flues` Aextending from said fuel receptacle' and combustion chamber, a plurality :of collecting fiu'esV connecting said rst-nam'ed nues-with said 4smoke outlet, valves adjacent the outlet ends of 'saidcollecting lues for severally controlling the 'passage of gases from said collectingues to said Y smokeoutl'et, Ia shaft extending 'through the Aboiler `from'the front to the back thereof,means connecting the rear end of said shaft with said valves, "and an operating handle secured [to the forward end Vof said shaft. i

5""7-9`. `A boiler comprising an ashpit, a fuel receptacle and combustion chamber, a smoke outlet, ues extending from said .fuel receptacle and combustion chamber, a plurality of collecting flus connecting said first-named lues with'said smoke outlet, a smoke-hood secured over vsaid smoke outlet, a pair of valvesp'ivotally supported in's'aid "sinon-hood for controlling the outlet ends f 'said collecting flues, arms secured to said valves;VV a recim'ocalole member engageable with ing-'through the boiler from the front to the back thereof the rear Yend of said 'shaft engaging said -reciprocable member, and an operating han- `lle secured to the forward end'of said shaft'for actuating" the same.

` boiler comprising an ashpit, a fuel recepaww-11 combustion chamber, a `plurality ,of collecting ues connecting said first-named flues with said `smoke outlet, a smoke-hood secured oversaid 5V smoke outlet, a pair of valves pivotallysupport/ ed in said smoke-hood for controlling ,the outlet ends ofsaid 'collecting ues, shafts on vsaid valves extending' vertically through `said smoke-Hood, arms each' fixed at one end to the projecting end K10 of oneof said valve shafts, a reciprocablefmember'jmounte'd upon said smoke-hood, `means "on said reciprocable memberv engag'able withftl'ie free ends' of "said arms whereby to open 'bothof said Valves or to open one of said valveswand 15 hold the other closed, and V,an `roperating Shaft extending longitudinally'of the .boiler and having its rearjend operatively associated 'with said recprocrable member, and a'handle secured to the forward end of said shaft. A .20

1l. In a'boiler having a plurality of smoke outlets, avalve f or controlling each of said outlets, supporting means for said valves, .shafts extending 'from said valve through said Asuplgzorting means; each of said'shaft having" anar'm'lxed 25 at one end 1thereto and a pin extendingomthe Y other end thereof, la bar slidably mounted'un said supporting ,meansV having lrec'esjsfes therein each engageable with one ofthe pins on' said valve shaft arms, a shaft extending longitudinally 30 of the boiler, an arm havingone endfixedt'o -said shaft and its other,end'pperaltivelyassoitd with said bar, and ian 'operating handle 'atflthe forward end of said shaft 'for' operatingislaid shaft lwhereby to cause'th'e arm'at its rearend `t i ,ao- 35 tuate said bar to open and close said valves.

CINLES WfiBtRlB- 

